Switch to own hosted searx instance. http://asciimoo.github.io/searx/admin/installation.html One search is sent to multiple search engines and results shown as one. Just go to settings and select qwant and ddg.
Whether i send queries to Google from my browser, or from my own hosted Searx instance, it's the same thing: a query from one of my static ip-addresses to Google (or other search engines.)
It seems to only make sense if this Searx instance is public and your queries are mixed with others. And in that case you have to trust whoever runs this Searx instance won't sell your data just like Google does.